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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 22 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121928
Prefixes after maximum aggregation: 77264
Unique aggregates announced to Internet: 57743
Total ASes present in the Internet Routing Table: 14681
Origin-only ASes present in the Internet Routing Table: 12741
Origin ASes announcing only one prefix: 5746
Transit ASes present in the Internet Routing Table: 1940
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 22
Number of addresses announced to Internet: 1200336653
Equivalent to 71 /8s, 139 /16s and 175 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57167
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20833
Total APNIC prefixes after maximum aggregation: 11928
Prefixes being announced from the APNIC address blocks: 19413
Unique aggregates announced from the APNIC address blocks: 11645
APNIC Region origin ASes present in the Internet Routing Table: 1732
APNIC Region origin ASes announcing only one prefix: 514
APNIC Region transit ASes present in the Internet Routing Table: 298
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106332064
Equivalent to 6 /8s, 86 /16s and 127 /24s
Percentage of available APNIC address space announced: 56.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74760
Total ARIN prefixes after maximum aggregation: 47619
Prefixes being announced from the ARIN address blocks: 52996
Unique aggregates announced from the ARIN address blocks: 16358
ARIN Region origin ASes present in the Internet Routing Table: 8177
ARIN Region origin ASes announcing only one prefix: 2763
ARIN Region transit ASes present in the Internet Routing Table: 773
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190035904
Equivalent to 11 /8s, 83 /16s and 183 /24s
Percentage of available ARIN address space announced: 70.8
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21025
Total RIPE prefixes after maximum aggregation: 15507
Prefixes being announced from the RIPE address blocks: 17567
Unique aggregates announced from the RIPE address blocks: 11015
RIPE Region origin ASes present in the Internet Routing Table: 4380
RIPE Region origin ASes announcing only one prefix: 2386
RIPE Region transit ASes present in the Internet Routing Table: 788
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 126155648
Equivalent to 7 /8s, 132 /16s and 251 /24s
Percentage of available RIPE address space announced: 75.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5295
Total LACNIC prefixes after maximum aggregation: 2210
Prefixes being announced from the LACNIC address blocks: 4639
Unique aggregates announced from the LACNIC address blocks: 3029
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 12026880
Equivalent to 0 /8s, 183 /16s and 132 /24s
Percentage of available LACNIC address space announced: 71.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1112 1135 814 Telstra Pty Ltd
4663 524 82 24 ELIMNET, INC
703 409 368 318 UUNET
2907 394 1994 372 SINET Japan
17557 340 24 128 Pakistan Telecom
2764 326 340 293 connect.com.au pty ltd
7474 305 276 208 Optus Communications Pty Ltd
4134 304 2651 100 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 232 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 229 3526 24 XTAGE CORPORATION
9583 218 33 13 Satyam Infoway Ltd.,
4766 202 2073 149 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 150 9 14 World Net & Services Co., Ltd
9238 132 8 19 TATA ISP
4716 129 737 123 TTnet
4739 128 57 116 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1592 8889 1150 UUNET Technologies, Inc.
7018 1429 7167 967 AT&T
3908 1224 1589 484 Supernet, Inc.
1239 968 3134 683 Sprint
1 668 8084 432 GENUITY
852 605 1107 445 Telus Advanced Communications
7046 578 828 245 UUNET Technologies, Inc.
7843 564 402 207 Adelphia Corp.
4323 531 473 169 Time Warner Communications, I
209 525 2106 334 Qwest
4151 524 691 57 USDA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 482 113 6 Covad Communications
6197 479 555 114 BellSouth Network Solutions,
3561 466 2322 326 Cable & Wireless USA
376 462 375 111 Reseau Interordinateurs Scien
705 448 165 195 UUNET Technologies, Inc.
2386 443 471 236 AT&T Data Communications Serv
6198 432 193 200 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2247 652 UUNET - Commercial IP service
3301 315 1143 303 TeliaNet Sweden
3215 312 818 171 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 218 369 199 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 160 69 95 BT Ignite European Backbone
8708 149 42 147 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 120 1299 110 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 358 102 Song Networks
3352 100 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 283 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 210 332 115 UniNet S.A. de C.V.
11172 161 82 33 Servicios Alestra S.A de C.V
6503 156 191 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 74 62 21 Telefonica Del Peru
8065 74 6 19 Empresas Publicas de Medellin
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
1916 70 286 43 Fundacao de Amparo a Pesquisa
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1224 740 Supernet, Inc.
4663 524 500 ELIMNET, INC
18566 482 476 Covad Communications
4151 524 467 USDA
7018 1429 462 AT&T
6197 479 365 BellSouth Network Solutions,
4323 531 362 Time Warner Communications, I
7843 564 357 Adelphia Corp.
376 462 351 Reseau Interordinateurs Scien
7046 578 333 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1112 298 Telstra Pty Ltd
6347 369 291 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 968 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 448 253 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 668 236 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 66.205.199.0/24 25752 Neopolitan Networks
64513 PRIVATE 66.205.200.0/24 25752 Neopolitan Networks
64520 PRIVATE 158.15.0.0/16 721 DLA Systems Automati
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
65520 PRIVATE 202.36.16.0/21 9889 Web InterNet, ISP
65520 PRIVATE 202.36.24.0/22 9889 Web InterNet, ISP
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:8 /11:12 /12:44
/13:93 /14:238 /15:445 /16:7341 /17:1585 /18:2882
/19:8141 /20:8030 /21:5768 /22:8768 /23:10484 /24:66834
/25:287 /26:415 /27:101 /28:97 /29:61 /30:174
/31:2 /32:96
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 795 1224 Supernet, Inc.
7018 526 1429 AT&T
702 494 790 UUNET - Commercial IP service
4663 480 524 ELIMNET, INC
18566 477 482 Covad Communications
701 451 1592 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 361 968 Sprint
6197 354 479 BellSouth Network Solutions,
6198 340 432 BellSouth Network Solutions,
7843 334 564 Adelphia Corp.
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 280 578 UUNET Technologies, Inc.
6140 271 283 ImpSat
20115 271 396 Charter Communications
2386 240 443 AT&T Data Communications Serv
7303 239 240 Telecom Argentina Stet-France
3215 238 312 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:643 13:1 15:4 17:2 20:9 24:834
25:1 32:83 34:1 38:42 40:18 44:2
55:1 57:15 61:452 62:503 63:1907 64:1386
65:1886 66:1429 67:213 68:285 69:51 80:322
81:89 128:143 129:189 130:40 131:81 132:13
133:2 134:144 135:4 136:195 137:117 138:104
139:72 140:103 141:110 142:94 143:46 144:107
145:18 146:262 147:85 148:266 149:74 150:44
151:95 152:252 153:51 154:3 155:106 156:41
157:39 158:123 159:141 160:34 161:55 162:135
163:83 164:269 165:138 166:81 167:303 168:392
169:54 170:304 171:8 192:5288 193:2423 194:2005
195:962 196:458 198:3594 199:3198 200:2874 202:3633
203:5087 204:3020 205:2031 206:2400 207:2392 208:2686
209:2782 210:778 211:372 212:953 213:728 214:21
215:22 216:3190 217:596 218:78 219:14 220:50
End of report
